Frog Dissection Manual 1. 2. Place the frog on the dissecting pan. Do not pin it down. Use these descriptions and the picture to identify each of the following external structures. A. Head – the anterior end of the frog extending to and including the eardrums mouth – the large opening at the anterior end of the head made up of a maxilla and mandible maxilla – the upper jaw bone mandible – the lower jaw bone external nares (i.e. nostrils) – two small openings on the dorsal surface of the
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The skeletal system is made up of cartilage and bone. Both bone and cartilage are connective tissues‚ that is‚ they are composed of cells in a matrix with intracellular fibers. Just imagine connective tissue as a gelatin salad with grapes and coconut. The grapes would represent cells‚ the gelatin the support material for matrix‚ and the pieces of coconut the intracellular fibers. By changing the amounts of each ingredient and adding extra substances‚ we can produce a material that is very hard like
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Alejandro Gomez Ms.Kautsch English 9 January 22‚ 2012 That Green Truck A lot of people think that heroes are super people that have super powers like x-ray vision and they can fly and do all sorts of things that regular people can’t‚ that’s what I used to think but they don’t really do you any good. a real hero is someone that contributes to you in a really good way like a role model or a dad. My hero always has been my dad .He is
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ME112 Transmission Dissection Procedure [pic][pic][pic][pic] Remove the bolts from the top Here’s what you will see. Locate Using the punch‚ pound out the (Optional): Pound out the pin and cover of the transmission (they are the selector pin and its collar. cotter pin in the collar. If it falls remove the bar that prevents more only hand tightened). in the transmission‚ don’t worry. than one shift fork being selected. [pic][pic][pic][pic] Unscrew the shift lever (if attached)
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1) The length of the tail: 18.5 cm 2) The length of the body ( from the tip of the nose to the base of the tail: 22cm What is their relative proportion? 1.2:1 PART A (Overview) pg. 462-464 a) Draw a diagram of the rat when it is first cut opened and the internal organs are exposed. Identify and label the diaphragm‚ the stomach‚ the small intestine‚ the caecum‚ the heart‚ the left and right lung‚ the trachea and the esophagus. (Note: see Figure 22 on pg 470 for an example) b) What structure
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Amphibia‚ frogs may live some of their adult lives on land‚ but they must return to water to reproduce. Eggs are laid and fertilized in water. On the outside of the frog’s head are two external nares‚ or nostrils; two tympani‚ or eardrums; and two eyes‚ each of which has three lids. The third lid‚ called the nictitating membrane‚ is transparent. Inside the mouth are two internal nares‚ or openings into the nostrils; two vomerine teeth in the middle of the roof of the mouth; and two maxillary teeth
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Dissection lab In the past 3 weeks we have been dissecting animals of all different sorts. We dissected a worm‚ crayfish‚ grasshopper‚ and a perch (fish). In my conclusion I will explain the diet‚ habitat‚ and how these relate to the structure of these animals. First I am going to be talking about the worm. The Earthworms have setae in groups around or under their body. The setae‚ paired in groups on each segment‚ can be moved in and out to grip the ground or the walls of a burrow. Worms travel
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Heart Dissection Sheep have a four-chambered heart‚ as do humans. By studying a sheep heart you can learn about your own heart at the same time. 1. Identify the right and left sides of the heart. Look closely and on one side you will see a diagonal line of blood vessels that divide the heart. The half that includes all of the apex of the heart is the left side. If you feel the heart‚ the left half will feel much firmer and more muscular than the right side. The left side of the heart has to
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Dangerous camping with cows By Jack Edmunds Cows are scary at night. I found this out once on a Boy Scout camping trip. Camping trips with the Boy Scouts can be great fun if you can come up with things to do during the dull moments between planned activities and sleep. This was never a problem for me and my peers being the criminal mastermind that I was back then. I never had any trouble thinking of stupid ideas to get us all in trouble. On this occasion since we were camping on a farm after
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Every year many people die from the cow flupidemic yet very little action is taken. One method that may save lives is the use of inoculations. However‚ the use of inoculations costs the state much more and also has a risk of death. The negative factors outweigh the small benefit of using inoculations. Moreover‚ the cow flu is present in rural areas where individuals are more susceptible. In these areas the local health care clinic should become proactive and educate individuals in those environments
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